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水泥是最常用的建筑材料。随着经济建设发展的需要,原有的水泥标准已不再适应当前的要求。水泥的新标准已经颁布,并于1999年12月1日起实施。这些标准是《硅酸盐水泥、普通硅酸盐水泥》(GB175-1999)、《矿渣硅酸盐水泥、火山灰质硅酸盐水泥及粉煤灰硅酸盐水泥》(GB1344-1999)、《复合硅酸盐水泥》(GB12958-1999),分别代替1991年和1992年颁布的上述水泥品种的三个标准,原标准自2000年12月1日起废止。新标
Cement is the most commonly used building material. With the needs of economic development, the existing cement standards no longer meet current requirements. The new cement standard has been promulgated and will be implemented on December 1, 1999. These standards are “Portland Cement, Ordinary Portland Cement” (GB175-1999), “Slag Portland Cement, Pozzolanic Portland Cement and Fly Ash Silicate Cement” (GB1344-1999), " Composite Portland Cement (GB12958-1999), instead of the three standards for the above-mentioned cement varieties promulgated in 1991 and 1992 respectively, the original standard was repealed on December 1, 2000. New standard